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I'm no expert on SNK conversions, but I'll try to help you with this one...
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WHAT is in the ROM cartridge of the game ?
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As for Ultraman, I don't know. Animation frames maybe?
With KOF95, from all the info I have read in reviews, on the web and in faqs, I think it goes something like this:
- a mask programmed ROM cartridge
- with 2 megabyte of data
- holding all of the background pictures (screens)
With this kind of realistic setup, the SNK programmers would only have to load animation frames from CD, which could be compressed data. This should be kind of fast, and give a lot of memory for the animation data once it has been put into usable layout.
This is all based on unreliable information, so don't take it too serious.
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I know that textures and backgrounds are dealed by the VDP2 chip. Is the cartridge related somehow to the VDP2, giving him special access to the ROM information ? Therefore the disc information would be sent to the VDP1 and the the carts info to the VDP2 ?
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All 2D for tiles and backgrounds will be handled by VDP2, all textures (for sprites) and other objects (polygons) need to be sent to VDP1. Yes, some of the info from the cart probably goes to VDP2. VDP1 gets all of the sprite texture data, which is loaded from disc i think. In the game, you don't need to change the background in a stage, but you'll change sprite data all the time. Getting them from external ROM would be too slow, so I don't think the cart has animation frames on it.
I don't own the game, so I have no idea. Maybe my guesses have helped you a little. |
